This series of patches add support to offload TC-MATCHALL classifier
to hardware to classify all outgoing and incoming traffic on the
underlying port. Only 1 egress and 1 ingress rule each can be
offloaded on the underlying port.
Patch 1 adds support for TC-MATCHALL classifier offload on the egress
side. TC-POLICE is the only action that can be offloaded on the egress
side and is used to rate limit all outgoing traffic to specified max
rate.
Patch 2 adds support for TC-MATCHALL classifier offload on the ingress
side. The same set of actions supported by existing TC-FLOWER
classifier offload can be applied on all the incoming traffic.
Thanks,
Rahul
---
v3:
- Added check in patch 1 to reject police offload if prio is not 1.
- Assign block_shared variable only for TC_SETUP_BLOCK in patch 1.
v2:
- Added check to reject flow block sharing for policers in patch 1.
- Removed logic to fetch free index from end of TCAM in patch 2.
Must maintain the same ordering as in kernel.
Rahul Lakkireddy (2):
cxgb4: add TC-MATCHALL classifier egress offload
cxgb4: add TC-MATCHALL classifier ingress offload
drivers/net/ethernet/chelsio/cxgb4/Makefile | 3 +-
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 6 +
.../net/ethernet/chelsio/cxgb4/cxgb4_main.c | 79 +++-
.../ethernet/chelsio/cxgb4/cxgb4_tc_flower.c | 21 +-
.../ethernet/chelsio/cxgb4/cxgb4_tc_flower.h | 6 +
.../chelsio/cxgb4/cxgb4_tc_matchall.c | 345 ++++++++++++++++++
.../chelsio/cxgb4/cxgb4_tc_matchall.h | 50 +++
.../ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c | 5 +-
drivers/net/ethernet/chelsio/cxgb4/sched.c | 56 ++-
drivers/net/ethernet/chelsio/cxgb4/sched.h | 1 +
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 11 +-
11 files changed, 543 insertions(+), 40 deletions(-)
create mode 100644 drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_matchall.c
create mode 100644 drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_matchall.h